AppArmor denied message when playing mpg file

When attempting to play an mpg file embedded in a web page, the firefox AppArmor profile is preventing the totem plugin from configuring gstreamer properly:

[ 452.655810] type=1400 audit(1326806891.663:35): apparmor="DENIED" operation="exec" parent=4229 profile="/usr/lib/firefox-10.0/firefox{,*[^s][^h]}" name="/usr/lib/x86_64-linux-gnu/gstreamer0.10/gstreamer-0.10/gst-plugin-scanner" pid=4230 comm="totem-plugin-vi" requested_mask="x" denied_mask="x" fsuid=1000 ouid=0

Steps to reproduce:
1- Go to http://www.fileformat.info/format/mpeg/sample/index.htm
2- Click on "View" on the right

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: firefox 10.0~b4+build1-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-9.16-generic 3.2.1
Uname: Linux 3.2.0-9-generic x86_64
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.90-0ubuntu2
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: mdeslaur 2707 F.... pulseaudio
BuildID: 20120113103241
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf2620000 irq 45'
   Mixer name : 'Intel IbexPeak HDMI'
   Components : 'HDA:14f15069,17aa218b,00100302 HDA:80862804,17aa21b5,00100000'
   Controls : 13
   Simple ctrls : 6
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6MHT45WW-1.20'
   Mixer name : 'ThinkPad EC 6MHT45WW-1.20'
   Components : ''
   Controls : 1
   Simple ctrls : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Channel: beta
Date: Tue Jan 17 08:28:27 2012
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110302)
Profiles: Profile0 (Default) - LastVersion=10.0/20120113103241 (Running)
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: Upgraded to precise on 2012-01-03 (13 days ago)
dmi.bios.date: 05/24/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 6MET86WW (1.46 )
dmi.board.name: 4313CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6MET86WW(1.46):bd05/24/2011:svnLENOVO:pn4313CTO:pvrThinkPadT510:rvnLENOVO:rn4313CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4313CTO
dmi.product.version: ThinkPad T510
dmi.sys.vendor: LENOVO